Vibrio cholerae

London in 1854 was just a blip in the disease’s vicious history, partially due to the long standing misunderstanding of what exactly it is and its symptoms. “The causative agent of cholera, one of the most serious gastrointestinal diseases, is Vibrio cholerae, a slightly curved, gram-negative rod with a single polar flagellum. Cholera bacilli grow in the small intestine and produce an exotoxin, cholera toxin, that causes host cells to secrete water and electrolytes, especially potassium”…

CEE 467 – ENVIRONMENTAL MICROBIOLOGY NAME: ERICK PEREIRA DANTAS DATE: SEPTEMBER 4th, 2014 PROFESSOR: DR. MORTEZA ABBASZADEGAN TA: LAUREN MCBURNETT LABORATORY #2 – BACTERIOLOGICAL EXAMINATION OF WATER: MOST PROBABLE NUMBER TEST AND MEMBRANE FILTRATION METHOD ABSTRACT: The most probable number (MPN) test and the membrane filter (MF) method have as goal to detect and estimate the presence of coliforms in a sample. Their importance in the field of environmental engineering is to support…

The history of climate change as a science can be traced back to the 1860s, when physicist John Tyndall conducted experiments to understand molecular physics, particularly the heat-absorbing abilities of atmospheric gases. Tyndall found that molecules absorb more heat than their individual atomic components, and that the naturally-occurring greenhouse gas nitric oxide absorbs approximately one thousand times more infrared energy than nitrogen or oxygen alone. The concept of climate change as a…